2015 is almost coming to a close, which means it's that time of the year again when everyone's rounding up the best things that happened this year. And the first one to do it? Vancouver-based YouTuber and musician Daniel Kim, famous for his Pop Danthology series, who released his highly-anticipated 2015 mash-up. (via BuzzFeed.com)

According to his website, this is the first time he's doing two because "with music from all over the world becoming more and more accessible, it has become increasingly more challenging to satisfy my fans and fit in all of their many favorite songs in my year-end mash-up." Awesome, right? That means he tried to fit most of the songs we loved this year. From Ariana Grande to Taylor Swift to Adele, these mash-ups have you covered.